XML 16 R4.htm IDEA: XBRL DOCUMENT v3.10.0.1
Condensed Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Statement of Comprehensive Income [Abstract]        
Net income $ 9,008 $ 14,137 $ 25,462 $ 29,184
Other comprehensive income (loss), net of tax:        
Change in post-employment benefits 14 (39) 42 (120)
Other comprehensive income (loss) 14 (39) 42 (120)
Comprehensive income $ 9,022 $ 14,098 $ 25,504 $ 29,064